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Storage Speed Decay?

post #1 of 4
Thread Starter 
Does the following seem about right? (Sequential Write seems awefully low compared to the advertised 270mbps)

It is an OCZ Vertex 2 60GB

-----------------------------------------------------------------------
CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo
Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read : 197.305 MB/s
Sequential Write : 67.511 MB/s
Random Read 512KB : 185.359 MB/s
Random Write 512KB : 66.036 MB/s
Random Read 4KB (QD=1) : 19.362 MB/s [ 4727.0 IOPS]
Random Write 4KB (QD=1) : 60.679 MB/s [ 14814.3 IOPS]
Random Read 4KB (QD=32) : 95.401 MB/s [ 23291.4 IOPS]
Random Write 4KB (QD=32) : 66.118 MB/s [ 16142.2 IOPS]

Test : 1000 MB [C: 65.0% (36.3/55.8 GB)] (x5)
Date : 2011/02/07 23:57:47
OS : Windows 7 [6.1 Build 7600] (x64)
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i7 - 550D
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post #2 of 4
That doesn't look right. Have you checked if the SSD is on i=one of the faulty SATA ports? This may explain this issue.
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post #3 of 4
Quote:
Originally Posted by dragosmp View Post
That doesn't look right. Have you checked if the SSD is on i=one of the faulty SATA ports? This may explain this issue.
This
post #4 of 4
You just made the drive even worse because you ran CDM (which writes about ~15-19GiB of data to the drive).
These drives from OCZ (SandForce based) are benchmarked against ATTO only.
http://www.ocztechnologyforum.com/fo...l=1#post567574

As I've posted elsewhere:
Quote:
1) Make sure it's connected to your Intel SATA ports.
2) Make sure you're running in AHCI mode
3) Make sure the latest Intel Rapid Storage 10.x drivers are installed
4) Make sure trim is active
5) Make sure the drive has a chance to idle, if you use the computer a lot.
These controllers do their GC during idle time, so if they never idle, you will see a large reduction in performance.
Simply log off or place the PC in an (S1) sleep state over night, one or more times a week.

Edited by Trigunflame - 2/8/11 at 3:22pm
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